Method and apparatus for delivering a biphasic defibrillation pulse with variable energy
US7463923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2004 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | May 20, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3906
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and method for determining an optimal transchest external defibrillation waveform that provides for variable energy in the first or second phase of a biphasic waveform that, when applied through a plurality of electrodes positioned on a patient's torso, will produce a desired response in the patient's cardiac cell membranes. The method includes the steps of providing a quantitative model of a defibrillator circuit for producing external defibrillation waveforms, the quantitative model of a patient includes a chest component, a heart component, a cell membrane component and a quantitative description of the desired cardiac membrane response function. Finally, a quantitative description of a transchest external defibrillation waveform that will produce the desired cardiac membrane response function is computed. The computation is made as a function of the desired cardiac membrane response function, the patient model and the defibrillator circuit model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.